Source
William O. Blake, The History of Slavery and the Slave Trade (Columbus, Ohio, 1862), facing p. 208; also found in earlier editions (Copy in Special Collections Department, University of Virginia Library).

Comments
Caption, "Plantation Life-Brazil"; black men and women engaged in various phases of preparing the manioc. This illustration is not described in Blake, but is undoubtedly derived from Johann Moritz Rugendas, Voyage Pittoresque dans le Bresil (Paris, 1835); see image reference NW0294 on this website.